Textbook Question
Solve each equation in Exercises 96–102 by the method of your choice. x^3 + 2x^2 = 9x + 18
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0. Review of Algebra
Factoring Polynomials
1:51 minutesProblem 10
Textbook Question
In Exercises 1–10, factor out the greatest common factor. x2(2x+5)+17(2x+5)
Verified step by step guidance1
Identify the common factor in the terms of the expression. Notice that both terms, \(x^2(2x+5)\) and \(17(2x+5)\), share the binomial \((2x+5)\) as a common factor.
Factor out the common binomial \((2x+5)\) from the expression. This means rewriting the expression as \((2x+5)(\text{something})\).
Determine what remains in each term after factoring out \((2x+5)\). From the first term \(x^2(2x+5)\), \(x^2\) remains. From the second term \(17(2x+5)\), \(17\) remains.
Combine the remaining terms into a single binomial. After factoring out \((2x+5)\), the expression becomes \((2x+5)(x^2 + 17)\).
Verify your result by distributing \((2x+5)\) back into \((x^2 + 17)\) to ensure it matches the original expression.
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1mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Greatest Common Factor (GCF)
The Greatest Common Factor is the largest expression that divides two or more terms without leaving a remainder. In algebra, identifying the GCF is crucial for simplifying expressions and factoring polynomials. For example, in the expression x^2(2x+5) + 17(2x+5), the GCF is (2x+5), as it is common to both terms.
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Factoring
Factoring is the process of breaking down an expression into simpler components, or factors, that when multiplied together yield the original expression. This is essential in algebra for simplifying equations and solving for variables. In the given expression, factoring out the GCF allows us to rewrite it in a more manageable form.
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Polynomial Expressions
Polynomial expressions are mathematical expressions that consist of variables raised to whole number exponents and their coefficients. They can be added, subtracted, multiplied, and factored. Understanding how to manipulate polynomial expressions is fundamental in algebra, as it forms the basis for solving equations and analyzing functions.
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